User Manual M3000® Automation System / MSC II (Moog Servo ...

10 MSC II (Moog Servo Controller) CAN Bus Interfaces
10.15 CAN Bus Interfaces
The MSC II is equipped with the following independent CAN bus interfaces
that can be operated within CAN bus networks:
• WideCAN (2 «WCAN» front panel connectors of the MSC II)
• LocalCAN (2 internally on the lateral Q-connectors of the MSC II)
A separate CAN bus controller is included for every CAN bus interface.
X3
WCAN
X1
WCAN
Q-Connector
Q-Connector
WideCAN
LocalCAN
MSC II
CAN Bus
Controller
CAN Bus
Controller
Figure 71: CAN Bus Interfaces of the MSC II
Although both CAN bus interfaces are equally fast and have equal priority,
WideCAN is typically used for communication between all the network stations
of a wide area automation system, while LocalCAN is preferred for rapid
local communication between fewer network stations.
The «WCAN» front panel connectors are connected internally 1:1 with each
other. As a result, the MSC II control module can be connected directly to the
CAN bus without a T-adapter.
The functionality of the CAN bus interfaces is defined in the application
program.
Information about CAN bus and CANopen:
�-"7.5-CAN Bus and CANopen" on page 55
Information about the CAN bus interface cable:
�-"7.5.6-CAN Bus Interface Cable" on page 59
CAN Bus Interfaces
of the MSC II control
module
CAN Bus Interfaces
of the MSC II
Status LEDs «WCAN» and
«LCAN» of the
MSC II
© Moog GmbH User Manual M3000 ® and MSC II (CA65865-001; Version 1.1, 08/08) 109
CPU
The «WCAN» and «LCAN» front panel status LEDs of the MSC II flash
synchronously to the flow of data that the MSC II is sending over the
WideCAN or LocalCAN interface, respectively.